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一、栗实象鼻虫 成虫于7月下旬至9月下旬出土,出土后危害嫩枝、幼果,约一星期后用口器咬破栗苞,向果实钻孔产卵,幼虫孵化后,在果实内取食。 防治方法: 1.栽培抗虫品种。利用我国丰富的板栗资源选育出球苞针刺密、坚硬、并且高产优质的抗虫
First, chestnut weevils adults in late July to late September unearthed after the unearthed harm shoots, young fruit, about a week after using the mouth to bite chestnut, drill holes to the fruit, the larvae hatch, Take food inside the fruit. Control methods: 1. Cultivation of insect-resistant varieties. The use of China’s abundant chestnut resources breeding seed bud Acupuncture dense, hard, and high yield and quality of insect-resistant